M4.6 Earthquake 207 km N of Daocheng, China — September 18, 2026
2026-09-18 12:09:48 UTC (2026-09-18) · approx. 7:09 PM UTC+7 local
On September 18, 2026 at 12:09 UTC, a magnitude 4.6 shallow crustal earthquake struck 207 km N of Daocheng, China, at a depth of 10.0 km and coordinates 30.8840°, 99.9358°. This earthquake was detected by 59 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
99.9358°E
Technical Information
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Common Questions
How strong was the magnitude 4.6 earthquake near Daocheng, China?
The magnitude 4.6 earthquake that struck 207 km N of Daocheng, China on September 18, 2026 at 12:09 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 30.8840°, 99.9358°, which is 207 km N of Daocheng, China.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
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Location
Authoritative source: USGS event page (event ID: us7000ti9a). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 18, 2026). M4.6 Earthquake 207 km N of Daocheng, China — September 18, 2026. Retrieved October 12, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000ti9a/